By utilizing a 5/16-inch D-shaft and double foot pad mounting

suitable for both low-temperature refrigeration and medium-temperature air conditioning

as it may differ from the original unit

This 3/4 inch NPT valve features a rugged iron body construction and is factory set at 50 PSI to provide critical overpressure protection for commercial and residential boiler systems

Technicians should look for visible grooving

Lennox 72L70 Fan Blade 321042-401 By utilizing a 5/16-inch D-shaftWhen you are onsite and dealing with a failed condenser fan, the Lennox 72L70 Fan Blade is the direct spec replacement required to restore factory level thermal rejection. This 18 inch diameter propeller is engineered for high static pressure applications within Lennox, Armstrong, and Ducane outdoor units. Featuring a 3 blade configuration with a 22 degree pitch, it is balanced to ensure smooth operation and reduced bearing wear on the motor. The 1 2